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UNITED STATES PATENT OFFICE.

GEORGE BRUOKER, OF NEW YORK, N. Y.

NICKEL-PLATING FLUID.

SPECIFICATION forming part of Letters Patent No. 242,263, dated May 31, 1881. Application filed March 28, 1881. (N0 specimens.)

To all whom it may concern: one part of cream of tartar, the latter being Be it known that I, GEORGE BRUCKER, of merely for the purpose of clearing the solution. the city, county, and State of New York, have Having thus described my invention, I claim I 5 invented a new and Improved N ickel-Plating' as new and desire to secure by Letters Pat- 5 Fluid, of which the following is a specification. ent- My composition consists of the following in- A nickelplating fluid composed of a satugredients: saturated solution of pure nickel rated solution of pure nickelin nitrieaoid,and

. in nitric acid and water, hyposnlphite of soda, of hyposnlphite of soda and cream of tartar, 2o

cream of tartar. The proportions of theingreas set forth.

[0 dients of the compound are as follows: to one Witnesses: GEORGE BRUOKER.

hundred parts of the nickel solution I add OsoAR F. GUNZ, about three parts of hyposulphite of soda and O. SEDGWIOK. 

